Epomaker RT100 Pro vs Keychron K4 Ultra
Get the Epomaker RT100 Pro for the 5,000 mAh battery. Get the Keychron K4 Ultra for the 8,000 Hz polling rate.
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4.3 (12)4.3 · 12 reviews
from$98at Epomaker
90-day lowLowest price in 90 days
5.0 (2)5.0 · 2 reviews
from$114at Keychron
Which one should you get?
Get the
Epomaker RT100 Pro
Battery
Build quality in the top 45% of 96% boards under $100.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Keychron K4 Ultra
polling rate
Build quality in the bottom 40% of 96% boards under $150.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Epomaker RT100 Pro
Keychron K4 Ultra
Battery
5,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Max polling rate
1,000 Hz
8,000 Hz
Higher polling helps competitive FPS and does nothing for typing
Case material
ABS, Plastic
ABS
Switch options
Linear, Silent
Clicky, Linear, Tactile
Mount style
Gasket Mount
Plate Mount
- Epomaker RT100 Pro
- Keychron K4 Ultra
- Performance
- 7988
- Build quality
- 6963
- Productivity
- 8387
- Customizability
- 7375
- Portability
- 5457
- Layout size: 96%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Sound dampening
- Keycaps: PBT
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Epomaker RT100 Pro
12 owner reviews
“I love my new keyboard. It is as quiet as advertised and I’m very pleased with the overall performance of the keyboard!”
“I have no way through the software to keep the keyboard on for more than a minute. And randomly throughout typing or gaming the keys become unresponsive. Id expect that out of a 20$ keyboard. But this was a 100$ purchase, very dissapointing”
Keychron K4 Ultra
2 owner reviews
“Quality keyboard. I just wish the indicator lights for caps lock and num lock was brighter. Even tried increasing it on the software but it isn't enough.”
Epomaker RT100 Pro vs Keychron K4 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 25 specs differ
Epomaker RT100 Pro
Keychron K4 Ultra
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
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